Home / 71,404,438.32-98,540,203.41-40,463,578.80

Finding the Fourth Proportional to 71,404,438.32, 98,540,203.41 and 40,463,578.80

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Solution

The fourth proportional to 71,404,438.32, 98,540,203.41 and 40,463,578.80 is: 55,840,916.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,404,438.32 : 98,540,203.41 = 40,463,578.80 : x
  2. Step 2: Convert to fraction form
    71,404,438.32/98,540,203.41 = 40,463,578.80/x
  3. Step 3: Cross multiply
    71,404,438.32x = 98,540,203.41 × 40,463,578.80
  4. Step 4: Simplify right side
    71,404,438.32x = 3,987,289,285,648,563.50
  5. Step 5: Solve for x
    x = 3,987,289,285,648,563.50/71,404,438.32
  6. Step 6: Final answer
    x = 55,840,916.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.